Rice-hulling mill



` 2 sheets-sheen 1.

T. M. GREEN. Rice-Hullng Mill. l No. 223,339. Patented Jan. 6,1880.

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y Rice-Hullng Mill.

No. 223,339. Patented Jan. 6,1880.

GA IW UNITED STATES PATENT OFFICE.

THOMAS M. GREEN, OF MILLEDGEVILLE, GEORGIA.

RICE-HULLING MILL.

SPECIFICATION forming part of Letters Patent No. 223,339, dated January 6, 1880.

L Application filed August 18, 1879.

To all 'whom t may concern Be it known that I, THOMAS M. GREEN, of Milledgeville, in the county of Baldwin and State of Georgia, have invented new and useful Improvements in RiceMills, of which the following is a clear, full, and exact description, reference being had to the accompanyingdrawings, and to the letters of reference marked thereon, which forni a part of this specification.

My improvement relates to those liulliiigmills whose opposiii g disks are constructed ot' wood. i

The novelty is in the provision of hullingsurfaces formed ot' yellow pine instead of other wood, set with the grain on edge in nearly radial position in such a in aimer that the softer portions ot' the wood, wearing away in use, will leave a rougheiied surface, such as is adapted to operate to the liest advantage in the loosening and separation ot' the hulls without injury to the grain, the soft portion ofthe pine, when on edge, wearing away much faster than the hard. always insuring a rough surface, and the ridges and depressions being of the proper depth and distance to thoroughly clean the rice with only one passage through the inill. l

In the accompanying drawings, Figure 1 is a plan of rice-mill illustrating my invention. Fig. 2 is a vertical section ot' the same. Fig. 3 is a plan of the bed with the runner removed. Fig. 4 is an underside view ot' the runner.

A A represent parts ot' a suitable frame, on which is rigidly mounted a hulling-bed, B, consisting ot' plates or slabs ot' yellow pine set on edge, with the grain as nearly as possible radial to the said bed, in the center of which rises a post or standard, O, forinin g the axis of the ruimer D. Obliquely' across the grain ot' the wood are grooves b', having ver'- tical sides b and inclined sides b.

The face B of the runner is formed, similarly to the bed, of blocks of yellow pine, with the grain on edge and radial, or nearly so, to the ruimer, with grooves b, apertures b b b b for the passage of the grain, and a bearingblock, E, construct-ed with inclined apertures e c c e, for conducting the grain from the eye h and chamber h to the apertures b b b b, and through the latter apertures to the rubbingsurfaces at points intermediate of the post and peripheryT of the runner.

The eye of the runner fits over the post or standard C, so that said ruimer is adapted to rotate concentrically on the bed B.

G is an adjustable gage, having notches or grooves g on its lower edge for assisting the passage of the grain, and held by a set-screw, y, and set up or down on the standard O, as nia-y be required, to regulate the iiow through the hopper H, which projects upward through the runner D, surmountiiig its eye h.

The exterior of the runner D is grooved, as shown at F, for the reception ot' a belt, I, passing around a pulley, J, on the vertical shaft K, which carries a fan, L, surrounded by a suitable casing, M, and delivering a blast of air through a fiume, N, running horizontally beneath the stone and coming out at a, directly beneath the spout O, by which t-lie rice is delivered from the grinding-bed B.

P represents a suitable curb surniouiiting the bed B and surrounding the runner D.

In operation rice is fed through the hopper H at a speed regulated by the gage G. A rapid rotary movement is imparted to the runner by means ot' the draw-rods Q, Q by two hands, standing one on each side of the mill; or, if the in-ill is to be operated by power, a belt is applied to the hopper, the exterior of which is formed, as shown, to constitutea pulley ior this purpose. The rotation of the runner is communicated with increased velocity through the pulley J to the shaft- K and fan L, causing a blast ot' air, which is delivered beneath the spout O, as bet'ore described, so as to carry away all refuse matter from the rice as it passes out ofthe mill.

Having thus described my invention, the

following is what I claim as new and desire to secure by Letters Patent:

A liulliiig-iiiill having the rubbing-surfaces of its opposing disks constructed ot' a Wood composed of alternate layers of' hard and soft material set in blocks, having the grain of the wood on edge and in lines substantially radial to the eye, as described, and for the purpose set forth.

THOMAS M. GREEN.

Witnesses:

T. T. WINDSOR, 0. G. WILSON. 

